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1
artículo
Local development from a basin perspective: the case of the Zaña valley basin” aims to describe the implementation of policies in the management of local development in the districts located in the Zaña valley basin. The central problem of our research is Is there in the local development management in the districts located in the Zaña Valley Basin a basin conception that is based on the rational use of natural resources, the development of social capital with identity and the sustainability of the environment? The object of study are the 8 districts that are located within the Zaña valley basin. It was determined that in the management of local development in the districts of the Zaña valley basin there is no basin approach. The public policies of the central government, regional and local governments are centralist and limit the spaces for participation of social actors. The nee...
2
artículo
Publicado 2024
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The impacts of the El Niño and La Niña phenomena are analyzed in the context of Climate Change in the upper basin of the Piura River, on the infrastructure and equipment for education, health, basic services, roads and residential, in the district of Canchaque, which was one of the most affected in that region. The type of research is applied, the level is explanatory and the approach is mixed, triangulating qualitative and quantitative methods. The results show that the intense rains associated with El Niño and the prolonged droughts of La Niña considerably affect all services and equipment, in turn aggravating the problems of water scarcity, affecting both agricultural production and the water resources available for human and livestock consumption. Finally, it is concluded that the upper basin of the Piura River, as a whole and Canchaque in particular, present risks and dangers; t...
3
artículo
Publicado 2016
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The present research was held in the basin of the river Ramis, located in the hydrographic region of Titicaca, Peru, with the objective of calibrating and validating the Sacramento hydrological model (SAC-SMA) from a semi-distributed approach. The hydrometeorological information used for rainfall, temperature and flow, correspond to a series of records 2005 - 2016. The methodology of spatial interpolation of meteorological data in the virtual station was estimated using the Shepard procedure and potential evapotranspiration by the model Turc, these methodologies are incorporated in the RSMINERVE platform and are automated estimates. The calibration and validation phase of the model was performed randomly with 70% and 30% of the total data respectively. The statistical evaluation of efficiency and error were measured by the Nash coefficient, Nash coefficient for logarithm values and r...
4
artículo
Publicado 2016
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The present research was held in the basin of the river Ramis, located in the hydrographic region of Titicaca, Peru, with the objective of calibrating and validating the Sacramento hydrological model (SAC-SMA) from a semi-distributed approach. The hydrometeorological information used for rainfall, temperature and flow, correspond to a series of records 2005 - 2016. The methodology of spatial interpolation of meteorological data in the virtual station was estimated using the Shepard procedure and potential evapotranspiration by the model Turc, these methodologies are incorporated in the RSMINERVE platform and are automated estimates. The calibration and validation phase of the model was performed randomly with 70% and 30% of the total data respectively. The statistical evaluation of efficiency and error were measured by the Nash coefficient, Nash coefficient for logarithm values and r...
5
artículo
Publicado 2016
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The present research was held in the basin of the river Ramis, located in the hydrographic region of Titicaca, Peru, with the objective of calibrating and validating the Sacramento hydrological model (SAC-SMA) from a semi-distributed approach. The hydrometeorological information used for rainfall, temperature and flow, correspond to a series of records 2005 - 2016. The methodology of spatial interpolation of meteorological data in the virtual station was estimated using the Shepard procedure and potential evapotranspiration by the model Turc, these methodologies are incorporated in the RSMINERVE platform and are automated estimates. The calibration and validation phase of the model was performed randomly with 70% and 30% of the total data respectively. The statistical evaluation of efficiency and error were measured by the Nash coefficient, Nash coefficient for logarithm values and r...
6
artículo
Publicado 2016
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The present research was held in the basin of the river Ramis, located in the hydrographic region of Titicaca, Peru, with the objective of calibrating and validating the Sacramento hydrological model (SAC-SMA) from a semi-distributed approach. The hydrometeorological information used for rainfall, temperature and flow, correspond to a series of records 2005 - 2016. The methodology of spatial interpolation of meteorological data in the virtual station was estimated using the Shepard procedure and potential evapotranspiration by the model Turc, these methodologies are incorporated in the RSMINERVE platform and are automated estimates. The calibration and validation phase of the model was performed randomly with 70% and 30% of the total data respectively. The statistical evaluation of efficiency and error were measured by the Nash coefficient, Nash coefficient for logarithm values and r...
7
artículo
Publicado 2020
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The Santa Eulalia Sub-basin is essential for Lima city. It provides water for its population, which is almost the third part of the national population. This article focus on the expectation and interests on water of the actors of the Sub-basin, as well as the ones beyond it, like Lima city. The new Water Law (2009) and the subsequent norms pretended to overtake the traditional approach to managing water as a resource to turn to an integrated management that, among other things, considers social, economic and environmental dimensions and apply a participative basin-based approach. Nonetheless, go from the promise to reality represents a big challenge. The first section of the article presents a general context of the Subbasin its actors and its relation to Lima city in the framework of relations between urban and rural areas. The second section explains the dynamics between the water use...
8
artículo
Publicado 2016
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This research will try to address the consequences of oil extraction on the access to natural and water resources, especially in two native communities of the Kukama Kukamiria people located in the lower Marañón basin. Furthermore, we analyze the role of the state and enterprises involved in the oil spills occurred in the area. In this sense, even if the oil spills have transformed the access and use of water (for instance the quantity and quality of water and fish in the area) the river and fishing remain relevant for the ecosystem, family economy and Kukama cosmovision. Nonetheless, the conception of a polluted environment continues to create incertainty in the population.
9
artículo
Publicado 2016
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The Puyango-Tumbes river basin derives from the polluting sources located basically in its upper and middle part, which incorporate a considerable amount of heavy metals into the water and, to a greater extent, into the sediments. The main activities that generate pollutants and incorporate them into the Puyango-Tumbes river are mining in the towns of Portovelo and Zaruma in the province of El Oro, Ecuador, as well as the generation and discharge of solid waste and residual water from the towns. seated in the river. This situation has already generated some problems in the lower part of the basin, a Peruvian sector, where it contaminates the rice soils on the left bank of the Tumbes river and the Tumbes mangroves; damaging direct food sources of the population and putting human health at risk. Within the framework of the aforementioned, this project aims to classify environmental indicat...
10
artículo
The integrated management of the basin must be analyzed from a complex point of view and from the different perspectives that address it. The implementation of integrated watershed management actions and plans is not easy, given the high variability of the territory in the Peruvian case, especially when it comes to transboundary watersheds. The Chinchipe basin, Peru-Ecuador transboundary basin, is part of the Amazonian slope, it is located in a strategic and productive area of northern Peru, mainly in the territory of the Cajamarca region, the agricultural activity with coffee cultivation predominates in the middle basin and rice crops, cocoa, other crops in the lower basin. Among its main weaknesses for integrated management is the non-conformation of the Basin Water Resources Council as a basic institutional actor of the system according to Peruvian Law, the limited empowerment o...
11
artículo
Publicado 2022
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Areas with a steep slope and with the presence of rain are susceptible to landslides, which in turn can cause other disasters. The objective of this research is to determine the landslide hazard map using deterministic methods, as a case study in the Cuyocuyo river basin, located in the northeast area of the department of Puno, belonging to the Amazon watershed, considered a moderately rainy and steep slopes. The mapping of ground instability is carried out considering landslides as surface translational, controlled by convergence of groundwater flow, using the infinite slope model. The data required to implement the model includes topography, soil properties, and water states that are highly variable in both space and time. The landslide inventory is used as verification at the points of occurrence. As results, for the saturated, semi-saturated and dry soil conditions, the safety factor...
12
artículo
Publicado 2023
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In this study, the results were evaluated of the application of the meteorological model Weather Research and Forecasting (WRF) in 103 days where extreme precipitation events (90th percentile) occurred within the Mantaro River basin. The WRF atmospheric model was used for four areas through nesting multiple, and spatial resolutions of 18, 6, 3 and 0.75 km, respectively, were obtained. Extreme precipitation forecasts were made and the effectiveness of the numerical outputs was evaluated, using observed data {\emph in-situ}, through the SENAMHI weather station network and satellite information. The values of statistical estimators show that the model tends to underestimate the rainfall data in many cases and overestimates it in others, having limitations in representing the spatial variability of the observed data. Accumulated precipitation satellite data always overestimates precipitation...
13
artículo
Publicado 2010
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This research approaches the effects that the water quality of Rimac river has presented opposite to the development of the mining activity in San Mateo’s district of Huanchor located in Huarochirí’s province in Lima. The area of study is a zone where the mining polymetallic activity has developed from many decades behind approximately from the 30s, epoch in which there had not the current requirements of the environmental legal regulation and for such motive we have nowadays catalogued in the zone 21 environmental mining liabilities between mine entrance, tailing ponds and infrastructures seated on the banks of the Rimac water and of it’s principal tributaries like Blanco and Aruri rivers which nowadays are important sources of lixiviados to Rímac river water, due to the fact that they aren`t being handled by the private company and for the State. The quality water investigation...
14
artículo
Publicado 2010
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La tesis de investigación aborda los efectos que ha presentado la calidad del agua del río Rímac frente al desarrollo de la actividad minera en el distrito de San Mateo de Huanchor ubicado en la provincia de Huarochirí del departamento de Lima. El área de estudio es una zona donde la actividad minera polimetálica se ha desarrollado desde muchas décadas atrás aproximadamente desde los años 30, época en la cual no se tenían las actuales exigencias de la normativa ambiental legal y por tal motivo tenemos actualmente catalogados en la zona 21 pasivos ambientales mineros entre bocaminas, relaveras e infraestructuras asentados a orillas de las aguas del Rímac y de sus tributarios principales como son el río Blanco y el río Aruri, los cuales actualmente son fuentes aportantes de lixiviados a las aguas del río Rímac, debido a que no están siendo manejados ni por la empresa priva...
15
artículo
Publicado 2024
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Water security in Andean watersheds depends on adaptive water management in the face of glaciohydrological and socioeconomic impacts. The Parón sub-basin in the Santa River basin (Ancash, Peru) is a suitable case in this respect. Water is regulated by a floodgate in the Parón lake, which has become a focal point of social conflict. This study analyzes the water balance of this sub-basin using a semi-distributed hydrological model for the present (2006-2016) and future (2030-2050), considering different scenarios of precipitation variation, glacial melting, and increased water demand. Without regulation of the lake, the sub-basin would enter into a strong water deficit in the dry months (June-August). Until 2030 (2050), assuming a maximum regulation of 2.6 m³/s, a 15% (35%) increase in precipitation, and a 10% (26%) decrease in the glacier contribution to the annual flow, water availab...
16
artículo
Publicado 2024
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Los ríos y quebradas, en la mayoría de casos, son utilizados como cuerpo receptor de los vertimientos municipales, que, sin el debido tratamiento, genera problemas de contaminación del agua. En las áreas de estudio de esta investigación, se tiene información de los monitoreos de calidad del agua publicadas por la Autoridad Nacional del Agua, donde los resultados no son muy comprensibles para una población que no conoce del tema. Los Índices de Calidad del Agua (ICA) son una de las herramientas más utilizadas para evaluar la calidad del agua, ya que resumen los datos de los parámetros fisicoquímicos y microbiológicos de una manera sencilla y de fácil comprensión. El objetivo de esta investigación fue realizar la evaluación de los ICA en las subcuencas Achamayo y Shullcas a través de la metodología canadiense CCME-WQI (The Canadian Council of Ministers of the Environment ...
17
tesis de grado
Publicado 2021
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La investigación se desarrolló en la microcuenca san francisco, con el objetivo de evaluar el grado de influencia de las medidas de mitigación ambiental en la recuperación de servicios ecosistémicos en la microcuenca san francisco, Rioja. Para lograr el objetivo planteado, la metodología utiliza la información aportada por dos variables; la mitigación ambiental y la recuperación de servicios ecosistémicos de la microcuenca san francisco. Se logró identificar las medidas de mitigación ambiental y determinar su influencia en la recuperación de los servicios ecosistémicos suelo y provisión hídrica, además de ello evaluar las acciones implementadas por retribución de los servicios ecosistémicos; para lo cual a fin de evaluar la recuperación del servicio ecosistémico suelo se logró identificar 10.50 ha de café recuperados con sistemas agroforestales, donde se hizo una c...
18
artículo
Publicado 2024
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Orthopterygium huaucui (A. Gray) Hemsl. es una Anacardiaceae endémica de género monotípico que habita la vertiente occidental de los Andes peruanos con potencial para recuperación de zonas semiáridas degradadas. Sin embargo, existen pocos estudios sobre su biología reproductiva. En este estudio se realizaron cuatro ensayos de germinación ex situ de “semillas” de Orthopterygium huaucui, obtenidas de tres sitios, en un gradiente altitudinal de los 1200 a 1700 m de altitud de la cuenca del Río Rímac, Lima Perú. Las semillas de cada sitio fueron sometidas a dos tiempos de secado, 20 y 60 días; y a dos condiciones, de germinador y de vivero. Se encontró que las “semillas” secas por 20 días tuvieron el porcentaje de germinación ligeramente más alto en condiciones de vivero que en condiciones de germinador. Mientras que las “semillas” secas por 60 días presentaron la...
19
tesis de maestría
El país árido y agrícola de Pakistán depende en gran medida del Sistema de Riego de la Cuenca Indo, la cual es alimentada principalmente por el río Indo y sus afluentes Jhelum, Chenab, Ravi y Sutlej. Con el recurso hídrico limitado, el sistema agrícola de la provincia de Punjab necesita mejorar su eficiencia y distribución equitativa. Este estudio tiene como objetivo desarrollar un modelo de red flexible que involucra una serie de nodos interconectados para caracterizar el sistema de riego de Punjab, Pakistán. El modelo se calibró utilizando el método Bayesiano de Monte Carlo, donde el conocimiento sobre los parámetros de pérdida/ganancia se actualizó con la información de datos observados. Los resultados del modelo de red propuesto fueron aceptables tanto para la calibración y validación, excepto en algunas colas de presa. Además, los coeficientes de ganancia/pérdida ...
20
artículo
In recent years, corporate governance and corporate social responsibility have come closer in academic research, and especially on sustainability indexes. In fact, the most significant indexes handle the matter of corporate governance along with other environmental and social criteria. The purpose of this study is to find out if all the variables included in the corporate governance dimension on the above mentioned indicators are equally relevant and material for both corporate social responsability and corporate governance. To carry out the study, a sample of academics and professionals from Spanish universities and businesses sector was taken. We defend the plausible hypothesis that not all items included within corporate governance dimension on sustainability indexes are homogeneous and interchangeable and, therefore, equally relevant. As a result, the measurements provided by these i...
